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How to calculate frequency from counting pulses measurement in s71200

1/12/2011 7:46 AM	Rate (0)
boopathi@sequent Posts: 79 Rating: (0)	hi, we are having s71200 cpu (6es7212 1hd30 0xb0) how to convert pulse input (digital input) to rpm.
boopathi@sequent Posts: 79 Rating: (0)
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1/12/2011 10:09 AM	Rate (0)
Denilson Pegaia Diamond Member Joined: 9/23/2005 Last visit: 12/23/2025 Posts: 4434 Rating: (1487)	hi, take a look at the similar post in the forum: https://www.automation.siemens.com/BR/tf/WW/en/Posts/52808#top
	Denilson Pegaia Siemens Industry Sector Technical Support
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4/18/2016 8:36 AM	Rate (0)
Klas Nordberg Posts: 4 Rating: (0)	Link dont work
Klas Nordberg Posts: 4 Rating: (0)
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4/18/2016 8:40 AM	Rate (0)
karthik live Experienced Member Joined: 5/11/2010 Last visit: 12/17/2025 Posts: 90 Rating: (8)	Hello friend, rpm calculation by using encoder pulses? try this (pulses per second * 60) / encoder ppr

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4/18/2016 8:48 AM	Rate (0)
EIC_CONTROL Posts: 198 Rating: (36)	it means your encoder in one revolution it will give 1024 pulse/rev depend on encoder specification and if this encoder you connected directly with motor then motor 1 revolution means 1024 pulses. these pulses you can use in s7-1200 hsc high speed counter and scale them with above example.
EIC_CONTROL Posts: 198 Rating: (36)
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4/18/2016 8:50 AM	Rate (0)
William_B Posts: 5225 Rating: (1204)	Klas Nordberg Link dont work Try this link... https://support.industry.siemens.com/tf/ww/en/posts/52808/ and also.. https://support.industry.siemens.com/tf/ww/en/posts/22906/
William_B Posts: 5225 Rating: (1204)
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